FAIRMol

OHD_Leishmania_128

Pose ID 8818 Compound 261 Pose 10

DB fairmolDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T14
T. brucei ODC (G418 binding site) T. brucei G418 binding site
Ligand OHD_Leishmania_128
PDB1NJJ

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Weak SASA cached
Weak or marginal quality
Binding strong Geometry medium Native strong SASA done
Strain ΔE
33.9 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.67, Jaccard 0.42, H-bond role recall 0.40
Burial
80%
Hydrophobic fit
79%
Reason: no major geometry red flags detected
1 protein-contact clashes 68% of hydrophobic surface is solvent-exposed (15/22 atoms). Large non-polar area without protein contacts incurs a desolvation penalty and will reduce binding affinity. Consider truncating or replacing the exposed fragment.
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.708 kcal/mol/HA) ✓ Good fit quality (FQ -7.02) ✓ Strong H-bond network (10 bonds) ✓ Deep burial (80% SASA buried) ✓ Lipophilic contacts well-matched (79%) ✗ Very high strain energy (33.9 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (16)
Score
-23.346
kcal/mol
LE
-0.708
kcal/mol/HA
Fit Quality
-7.02
FQ (Leeson)
HAC
33
heavy atoms
MW
452
Da
LogP
0.57
cLogP
Strain ΔE
33.9 kcal/mol
SASA buried
80%
Lipo contact
79% BSA apolar/total
SASA unbound
755 Ų
Apolar buried
478 Ų

Interaction summary

HB 10 HY 5 PI 0 CLASH 1 ⚠ Exposure 68%

HB · H-bonds

Mode: strict. Count shows atom-level H-bonds; unique residues in summary: 0.

PI · π–π interactions

No pi · π–π interactions detected for this pose.

HY · Hydrophobic contacts

CLASH · Clashes

🚨Solvent-exposed hydrophobic surface — desolvation penalty likely
68% of hydrophobic surface is solvent-exposed (15/22 atoms). Large non-polar area without protein contacts incurs a desolvation penalty and will reduce binding affinity. Consider truncating or replacing the exposed fragment.
Non-polar atoms 22 Buried (contacted) 7 Exposed 15 LogP 0.57 H-bonds 10
Exposed fragments: phenyl (4/6 atoms exposed)phenyl (4/6 atoms exposed)phenyl (6/6 atoms exposed)aliphatic chain/group (3 atoms exposed)
Final rank4.818Score-23.346
Inter norm-0.672Intra norm-0.035
Top1000noExcludedno
Contacts19H-bonds10
Artifact reasongeometry warning; 16 clashes; 3 protein clashes; high strain Δ 33.9
Residues
ALA283 ARG22 ARG242 ARG50 ASN20 ASP243 ASP385 ASP44 ASP47 CYS26 GLN341 GLU384 LEU25 LEU382 LYS51 SER282 THR21 THR241 THR285

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name1NJJContacts15
PoseOpen native poseHB0
IFP residues
ARG22 ARG242 ARG337 ARG342 ASP243 ASP385 GLN341 GLU384 LEU25 LEU339 LEU382 PRO340 PRO344 SER282 THR241
Current overlap10Native recall0.67
Jaccard0.42RMSD-
HB strict2Strict recall0.33
HB same residue+role2HB role recall0.40
HB same residue3HB residue recall0.60

Protein summary

398 residues
Protein targetT14Atoms6140
Residues398Chains1
Residue summaryVAL:592; LEU:513; LYS:484; ARG:432; PHE:420; ILE:418; ASP:349; THR:322; TYR:315; PRO:308; GLU:301; ALA:290; SER:253; GLY:217; ASN:210; GLN:170

Receptor context

1 kept / 0 excluded
Receptor context filtering: interactions and SASA are computed against protein atoms plus allowed cofactors/ions. Native ligand-like HETATM partners are excluded from scoring.
Kept context 1 Excluded HETATM 0
Kept cofactors / ions
A:ORX602

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
13 1.7342413198435611 -0.802353 -28.0459 6 20 0 0.00 0.00 - no Open
13 2.100363463450513 -1.05159 -35.2196 9 18 0 0.00 0.00 - no Open
8 3.6227570988795805 -0.825936 -29.0911 6 20 0 0.00 0.00 - no Open
9 3.780912972736006 -0.796227 -27.7839 10 22 0 0.00 0.00 - no Open
7 4.13022559145052 -0.827131 -28.0835 10 21 0 0.00 0.00 - no Open
7 4.225100425984698 -0.813927 -28.646 10 22 0 0.00 0.00 - no Open
8 4.56511958635522 -0.585557 -19.9246 7 12 0 0.00 0.00 - no Open
10 4.8184634502778785 -0.672055 -23.3462 10 19 10 0.67 0.40 - no Current

Molecular metrics

RDKit SASA burial, strain energy (MMFF94s), ligand efficiency and fit quality for this docking pose.
✓ Metrics available

Scoring & efficiency

Docking score -23.346kcal/mol
Ligand efficiency (LE) -0.7075kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.019
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 33HA

Physicochemical properties

Molecular weight 451.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 0.57
Lipinski: ≤ 5
Rotatable bonds 8

Conformational strain (MMFF94s)

Strain energy (ΔE) 33.88kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 34.10kcal/mol
Minimised FF energy 0.23kcal/mol

SASA & burial

✓ computed
SASA (unbound) 755.4Ų
Total solvent-accessible surface area of free ligand
BSA total 608.3Ų
Buried surface area upon binding
BSA apolar 478.2Ų
Hydrophobic contacts buried
BSA polar 130.0Ų
Polar contacts buried
Fraction buried 80.5%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 78.6%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2561.0Ų
SASA_nonpolar(complex) − SASA_nonpolar(receptor) − SASA_nonpolar(ligand free). Negative = non-polar surface buried upon binding. Requires full polarity-decomposed SASA computation.
Receptor non-polar SASA 3349.0Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 1384.8Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)